Please find the attached file for a proper understanding of the question given here. The diagram in the file attached is the complete accompanying diagram of the question.
As per that diagram, 
(which is given)
and we know that 
(vertically opposite angles).
Thus, the only way ΔDSB ≅ ΔTSR by SAS is when 
as indicated in the diagram.
Thus, is the correct answer.
Answer:
100+10n
Step-by-step explanation: a(10)
100+10(10)
100+100 = 200
Answer:
$110
Step-by-step explanation:
So first you have to do 15*4. We get the 4 from the admission fees and the 15 from the number of dances they attend. From this answer we can see the total of money they will be paying for admission for the 15 dances.
15*4=$60
However, our answer isn't just $50 as we are also told membership costs $50. So no we add $50 to $60, which gives us an answer of $110, which is the amount the member will pay if they attend 15 dances during the school year.
The midpoint of 85 and 90 is 87
